After reading the penultimate sequel Ender's GameI promised myself not to read anything more than Orson Scott Card. When from Nova published the latest sequel, I did not buy it, even though I bought all the books published this collection. Not that I have anything against Orson Scott Card (I met him in Mataro Hispacon in 97 and I've read almost everything published his Nova de Ediciones B). But he was sick of sequels to Ender and books aimed at an increasingly young audience and without any grace or orientation toward science fiction.

When I saw that Nova published Invader treatmentI was tempted to not not buy it, but reading the back I saw that was not set in the Ender universe and perhaps could give another chance to CSOs. I'm glad to have given it ... although I'm not sure that this book can be attributed to CSOs. I explain:

As indicated the same as OSC and makes Miquel Barceló in his foreword, the book was written by Aaron Johnston from a story published in Analog CSO in 1976. So although the characters are typical of CSOs, the rest of the book it is not.

Make no mistake, the book is written by Aaron Joshnston not by CSOs. Although CSO hand can be seen in the plot and setting.

The plot tells the story of several characters and mysterious "healers" who are biologically enhanced. These healers have a virus that adapts to individual genetics for which has been created, and allow any genetic disease cure the person to whom he inoculated. So in theory, they have the cure for many diseases until today mortals. The bad thing about this virus is that for a few days, is deadly to other humans who are close to the sick, which makes it extremely dangerous. And the bad thing is that the curators believe in a new religious cult invented by its leader, promising them "happy world"And above all healthier.

We must acknowledge that even though there is a clear protagonist, all characters are treated in depth and acquire the dimension that gets to empathize with some and hate others. This is something that CSOs often do well in their books and this has certainly veiled it so well.

Overall, the book is well written, can be read well, engages, has pace and ultimately, a book that makes you think it is. So my verdict is a book by Orson Scott Card and Aaron is Joshnston, is that it is 100% recommended.